The maximum temperature in Kohtla-Järve is on average 8°C over the year, with values generally ranging between -3°C in February and 21°C in July. About 922 mm of precipitation falls per year, with a minimum of 50 mm in April and a maximum of 114 mm in August.
The climate is suitable for a trip to Kohtla-Järve in: May, June, July, August and September. Nevertheless, the months when the weather is really pleasant are June, July, August and September.
For swimming, the most favorable period for water temperature is July, with a water temperature above 19.2°C.
In terms of crowd levels, the quietest periods are in February, March and November, while crowding is high in June, July and August.